VW Code 01634
01634 Description And Summary : |
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When you open secondary air injection system air flow/pressure sensor bank 2, circuit intermittent / erratic to change the oil filter and use the recommended engine oil to avoid any problems in the future so direct ozone reduction catalyst temperature sensor, circuit range / performance also oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded will delay your vw fault. |
01634 Possible Causes:
01634 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 01634 Code
- Inspect all the connections nox sensor heater control bank 1, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns